You use the material herein SOLELY AT YOUR OWN RISK. It is possible to harm both your monitor and yourself when driving it outside the manufacturer's specs. Read Overdriving Your Monitor for detailed cautions. Any damage to you or your monitor caused by overdriving it are your problem.
The most up-to-date version of this HOWTO can be found at the Linux Documentation Project web page.
Please direct comments, criticism, and suggestions for improvement to esr@snark.thyrsus.com. Please do not send email pleading for a magic solution to your special monitor problem, as doing so will only burn up my time and frustrate you -- everything I know about the subject is already in here.